Sinter-pan



S. A. KROM.

SINTER PAN.

APPLICATION FILED JULYS, 1920.

PatentedSept. 20, 1921.

ZSHEETS-SHEET 1.

INVENTOR ATTORNEY 2 SHEETS-SHEET 2.

PatentedSept. 20, 1921.

lN\ IENTOR ATTORN EY S- A. KROM.

SINTER PAN.

APPLICATION FILED JULY3, 1920.

@zEmEF EHmH hH UNITED- STATES PATENT OFFICE.

- STEPHEN A. KnoM, or BIRMINGHAM, ALABAMA.

sINTER-rAN.

To all whom it may concern:

Be it known that I, STEPHEN A. 'KRoM, a citizen of the'United-States of America, residing at Birmingham, in the county of J efferson and State of Alabama, have invented certain'new and useful Improvements in Sinter-Pans, of which the following is a specification. I My invention relates to a s nter pan espe cially' designed for thequick and easy str pping of the sinter from the grate without requiring manual labor or expensive construction or manipulation 'ofthe pan.

Heretofore it has been sought to strip the sinter from the grates by hand labor which is tedious and expensive and to facilitate the removal of the sinter it has been proposed to swivel the sinter pan sothat it can be inverted. v According to my present'invention I propose to mountthe hopper and grate support- It is a further object to provide the mov able wall with abottom cutting ring which will take the wearincident to stripping the sinter from the grates and which can be replaced from time to time .7

A further object ofm invention is to mount the movable wall of the pan on rollers and provide tracks therefor, a pusher ram being connected to thewall to move'it back and forth from operating to dumping position.

My invention comprises the novel details of construction and arrangements of parts, which in their preferred embodiment only are illustrated in the accompanying drawings which form a part of this specification, and in which v Figure 1 is a side elevation of the sinter pan, the dotted lines showing the movable Specification of Letters Patent. Patented Sept 20 1921 Application filed July 3, 1920. SerialNo. 393,989.

prising an annular top ring 1 and an annular grate ring 2 cast with an internal lug 3 upon which the members 4 of the grate are supported. The grate ring has cast integral with it a downwardly converging apron 5 which forms the top portion of the hopper. The hopper is formed by a metallic casing 6 which at its upper end is seated in the apron 5 and attached thereto in any suitable manner. Atits bottom the hopper'is provided with a connection to the air suction pipe 7 which in turn is connected to any suction engine or suitable exhaust. The type of grate may be of any suitable character and may be integral or in units. The grate-ring 3 is connected on each side by brackets 8 which are in turn connected to a pair of parallel. I-beams 9 which extend substantially beyond the hopper ring on each side and are supported at intervals by cross beams 10. I The cross beams are arranged adjacent to the hopper so as to supportthe load thereof intermediate the beams 9 by other brackets ,8. A track rail 11 is mounted on top of each I-beam 9 and extends from end to end-thereof. The top ring 1 is cast with trunnions 12 upon which are mounted wheels 13 which ride the tracks 11. These wheels are diametrically oppositely disposed. I attach to'the top ring by means ofthe bracket 14 and H-axle 15, and on this axle are bolted end trunnions on which are mounted wheels 16 similar to 13. A geared pusher or ram 17 is connected to the center of this axle 15 and its teeth mesh with the teeth of a pinion gear 18 which in turn is driven by a gear train 19 that in turn is driven by the electric motor 20 or any other equivalent prime mover. The rear end of the pusher is guided between the rolls 21 below and roll 22 above, these being all" mounted in a frame 23 that is set on the I-beams 10.

" Thetop ring 1 is formed as a casting hav-- ing an inwardly sloping upper annular face 24 terminating at a straight vertical annular wall 25 which continues to the base flange 26 of the ring and comes flush with the inner wall of the grate ring. To this flange 26 is bolted a steel cutting ring 27 having a downwardly beveled cutting edge 28. The trunnion wheels 13 and 16 support this edge 28 just clear of contact with the grate ring 2. The top ring 1 is strengthened by external webs 29. v

The apparatus having been constructed and assembled as described, its operation is as follows. The material to besintered is delivered by any suitable mechanism or appliance onto the grate 4 of the sintering pan and the latter is filled usually level with the top of ring 1, whereupon the blast is put on and the sintering operation commences. When this operation is completed and it is desired to remove the sinter from the pan, the motor is started and the pusher ram drivesthe top ring 1 with its cutting ring 27 ahead of it, forcing it to strip with it the sinter from the top surface of the grate, and indoing this the sinter is broken up and loosened so that as" the top'ring moves to dotted Y line position, which it reaches at the end of the pusher stroke, all of the sinter which has been drawn off with it from the grate will fall-freely away from the top ring into a hopper (not shown), or any suitable collecting point. ,The motor is reversed,-the top ring is drawn back to position above the grate and the operation is repeated, it being noted that the bodily movement of the top ring will most effectively strip the grate without requiring any hand labor and the sinter will all drop off from the top ring without requiring that it shall be loaded or broken, which is the general present practice.

I prefer the annular construction of the sinter pan as, by this means the cutting ring 27 can be shifted from time to time .until its whole edge is worn, it being apparent that the maximum wear thereon comes on the portion in line with the pusher. V V c This ring is made of hardened steel so as to bedurable and as it takes practically all y of the wear, the ringl does; not require replacement My invention contemplates the supportingof the movable ring on any type of guide or support and moving it in any manner'or by any means suitable, so long as the pan retaining wall is utilized as a movable stripper for the grate. I This invention is not intended to be restricted in scope tothe specific embodiments shown, but contemplates such modifications as come within the spirit and scope'of the claims. 1

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A sinter pan comprising a grate sup porting section, and a movable charge retaining section above the grate adapted to be shifted laterally to clear the grate section.

2. The combination with a sinter pan having a grate therein, of a, movablewallfor retaining thecharge on the; grate, tracks to support said wall, and means to shift said wall on said tracks from position above the grate.

' 3. A sinter pan comprising a fixed grate retaining wa a track on which saidwheel 7 supports travel, and a power driven pusher ram to shift said wall ofth'e pan on its roller supports from position above the grate to position: lear of the grate tortherebys'trip the sinterifrom the grate; substantially as described.

5. A sinterpan having its charge retain;

ing wall movable, a detachable hardened cuttin attachmentat thebottom edge of said wall, the cutting attachment and wall being shaped to permit the attachment. to be ,shifted to present different-faces thereof to the work, and means to, shift; said wall relatively. to. the pan to cause it and its cutting attach.- ment to strip the sinter fromythe pan.

In testimony whereof I aflix my si ature. STEPHEN ,K OM. 1

Witness: h NOMIE Wnnsm' 

